Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b91cc72cd042b5e…

MALICIOUS

PDF

43.3 KB Created: 2020-08-20 06:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 091b50420c1e85f3a9a194d7ad373b12 SHA-1: 48961cdf3f3c4655ba40f7d3a011d26ef9068f13 SHA-256: 7b91cc72cd042b5e496285f39bcd9e847731f4cc8a464a2bbd303ace759ad309
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, many of which point to a redirector service designed for SEO spam and phishing. The primary lure appears to be "Old bollywood mkv movies", directing users to the malicious URL https://ttraff.cc/pify?keyword=old+bollywood+mkv+movies. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=old+bollywood+mkv+movies In PDF document text
    • http://gutemupa.dazmedia.net/uploads/1/3/2/7/132741334/142771a01486162.pdfIn PDF document text
    • http://files.weesnerbittersweetfarm.com/uploads/1/3/1/4/131453998/lenube.pdfIn PDF document text
    • http://files.lynnkirkham.net/uploads/1/3/0/8/130874318/6548217.pdfIn PDF document text
    • http://zijalowag.ketonetpasim.com/uploads/1/3/2/8/132814930/5712144.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/65241974205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/31152670894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/lefevalupoxebumunekawez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3105/0915/files/91538620561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4645/2899/files/wing_chun_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0620/3803/files/dictionnaire_des_accords_pour_guitare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/puzuxiwelodixivetupizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/6253404488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6732/files/zozemoteripevosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/28550746307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/landscape_architecture_portfolio_examples.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A0 5148 bytes
SHA-256: 9e6a69e8c9ee1b74dd509aed7935074959cdc64607f0c0b120e39d264c69a148
font_01_sfnt_off0000672e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672E 10384 bytes
SHA-256: 5638c693f4afad872c77c64293c117d5f2475c0a8f9cd6c37f3f3686cb3aa4fd
font_02_sfnt_off00008ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE5 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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